Detection device for automobile balancing weight production

Abstract

The utility model belongs to the technical field of automobile manufacturing, and particularly relates to a detection device for automobile balancing weight production, which comprises a Rockwell hardness tester body, a control component arranged on the surface of the lower end of the side wall of the Rockwell hardness tester body, a display screen arranged at the top of the front end of the Rockwell hardness tester body, and a connecting block arranged at the side wall end, close to a limiting disc, of a limiting plate. The surface of the threaded rod is in threaded connection with the surface of a threaded groove formed in the side wall of the limiting disc. According to the Rockwell hardness tester disclosed by the utility model, the Rockwell hardness tester body, the control assembly, the display screen, the pressure head, the lifting screw rod, the objective table, the limiting disc, the adjusting groove, the limiting plate, the connecting block, the threaded rod and the threaded groove are matched with one another, and an automobile balancing weight needing hardness detection is fixed at the top of the objective table, so that the phenomenon that the hardness of the automobile balancing weight needs to be detected when the pressure head is pressed down for detection is avoided; an automobile balancing weight with a smooth surface slides on the top of an objective table, so that the position of the balancing weight deviates, and the accuracy of a detection result is influenced.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, and specifically relates to a testing device for automobile counterweight production. Background Technology

[0002] The automotive industry is developing rapidly, and the requirements for vehicle performance and safety are constantly increasing. Although small, automotive counterweights have a significant impact on vehicle balance and handling. During production, it is essential to ensure their superior quality. Hardness, as a key performance indicator of counterweights, directly affects their ability to withstand complex stresses and maintain stable operation during vehicle operation. Therefore, hardness testing equipment is crucial in the production of automotive counterweights.

[0003] In current automotive counterweight production, when testing the hardness of counterweights using a Rockwell hardness tester, the counterweight to be tested is generally placed directly on a platform, and the indenter is used to test it. However, due to the diverse sizes and smooth surfaces of automotive counterweights, and the possibility of improper placement during production, the Rockwell hardness tester needs to accurately apply the indenter perpendicularly to the test area of ​​the counterweight. During testing, the downward pressure of the indenter may cause the counterweight to shift, resulting in the test surface not being perpendicular to the indenter, thus leading to a large error in the test results. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for automobile counterweight production. This device addresses the problem in existing technologies where, during automobile counterweight production and hardness testing using a Rockwell hardness tester, the counterweight is typically placed directly on a platform and tested using an indenter. However, due to the diverse sizes and smooth surfaces of automobile counterweights, and potential misplacement during production, the Rockwell hardness tester requires precise perpendicular application of the indenter to the testing area. During testing, the indenter's downward pressure can cause the counterweight to shift, resulting in the testing surface not being perpendicular to the indenter and leading to significant errors in the test results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a testing device for automobile counterweight production, comprising a Rockwell hardness tester body, a control component on the lower end surface of the side wall of the Rockwell hardness tester body, a display screen on the top front end of the Rockwell hardness tester body, an indenter on the upper end of the groove of the Rockwell hardness tester body, a lifting screw on the surface of the Rockwell hardness tester body directly below the indenter, a platform on the top surface of the lifting screw, a limiting plate threadedly connected to the top of the platform, an adjustment groove on the top surface of the limiting plate, a sliding connection between the adjustment groove and a protrusion at the bottom of the limiting plate, a connecting block near the side wall of the limiting plate, a threaded rod rotatably sleeved on the inner wall of the connecting block, and a threaded rod threadedly connected to the surface of the threaded groove on the side wall of the limiting plate.

[0006] As a preferred embodiment of the testing device for automobile counterweight production according to this utility model, the four sets of adjustment grooves are annularly opened on the top of the limiting plate, and the bottom of the limiting plate is provided with a circular protrusion that matches the adjustment groove. The inner wall of the connecting block is provided with a circular rotating groove, and the shape and size of the rotating groove match the protrusion on one side of the threaded rod.

[0007] As a preferred embodiment of the testing device for automobile counterweight production according to this utility model, the surface of the platform is provided with a threaded structure, and the shape and size of the threaded structure are adapted to the threaded groove on the inner wall of the bottom of the limiting plate.

[0008] As a preferred embodiment of the testing device for automobile counterweight production according to this utility model, the longitudinal end surface of the limiting plate is movably connected to the insert rod, the other end surface of the insert rod is provided with a connecting frame, the surface of the connecting frame is threadedly connected to the insert plate, the surface of the connecting plate away from the connecting frame is connected to the spring, the other side of the spring is connected to the longitudinal end of the insert plate, and the other longitudinal end surface of the insert plate is inserted and fitted into the slot surface opened on the top of the platform.

[0009] As a preferred embodiment of the testing device for automobile counterweight production according to this utility model, the surface of the limiting plate is provided with a circular through groove, and the shape and size of the through groove are adapted to the insertion rod.

[0010] In a preferred embodiment of the testing device for automobile counterweight production according to this utility model, the insert rod, connecting frame, connecting plate, spring, and insert plate form an elastic connection structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By cooperating with the Rockwell hardness tester body, control components, display screen, indenter, lifting screw, stage, limiting plate, adjusting groove, limiting plate, connecting block, threaded rod and threaded groove, the position of the car counterweight block to be tested on the top of the stage is fixed, thereby preventing the smooth surface of the car counterweight block from sliding on the top of the stage when the indenter presses down for testing, which would cause the counterweight block to shift and affect the accuracy of the test results.

[0013] Meanwhile, by utilizing the cooperation between the stage, limiting plate, insert rod, connecting frame, connecting plate, spring, insert plate and slot, after long-term use causes the components on the limiting plate to wear out, the cooperation of the insert rod and spring makes it easy to disassemble and replace the limiting plate that is threadedly connected to the stage, and makes the replacement limiting plate more stable when connected to the top of the stage. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top view enlarged cross-sectional schematic diagram of the limiting disc and limiting plate of this utility model;

[0018] Figure 4 This is an exploded cross-sectional view of the insertion rod and connecting frame of this utility model.

[0019] In the diagram: 1. Rockwell hardness tester body; 2. Control components; 3. Display screen; 4. Indenter; 5. Lifting screw; 6. Stage; 7. Limiting plate; 8. Adjustment groove; 9. Limiting plate; 10. Connecting block; 11. Threaded rod; 12. Threaded groove; 13. Insert rod; 14. Connecting frame; 15. Connecting plate; 16. Spring; 17. Insert plate; 18. Slot. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-4 This utility model provides the following technical solution: a testing device for automobile counterweight production, comprising a Rockwell hardness tester body 1, a control component 2 provided on the lower end surface of the side wall of the Rockwell hardness tester body 1, a display screen 3 provided on the top front end of the Rockwell hardness tester body 1, an indenter 4 provided on the upper end of the groove of the Rockwell hardness tester body 1, a lifting screw 5 provided on the surface of the Rockwell hardness tester body 1 directly below the indenter 4, a platform 6 provided on the top surface of the lifting screw 5, a limiting plate 7 threadedly connected to the top of the platform 6, an adjustment groove 8 provided on the top surface of the limiting plate 7, and the surface of the adjustment groove 8 slidably connected to the bottom of the limiting plate 9. The protrusion and the limiting plate 9 are provided with a connecting block 10 near the side wall of the limiting disk 7. The inner wall of the connecting block 10 is rotatably sleeved with one end of the threaded rod 11. The surface of the threaded rod 11 is threadedly connected to the surface of the threaded groove 12 opened on the side wall of the limiting disk 7. In this solution, the Rockwell hardness tester body 1, the control component 2, the display screen 3, the indenter 4, the lifting screw 5 and the stage 6 constitute the main body of the Rockwell hardness tester. The main body of the Rockwell hardness tester contains a large number of related components. Since they are existing technologies and the core content of this technical solution is not related to them, they will not be described in detail in this technical solution.

[0022] The main model of the Rockwell hardness tester in this solution is: RM-150D1.

[0023] When in use, the Rockwell hardness tester selects an appropriate Rockwell hardness scale based on the material and hardness range of the car counterweight, referring to relevant standards or experience. This means determining the type of indenter 4 (such as a diamond cone indenter 4 or a steel ball indenter 4) and the corresponding test load. Then, the control component 2 controls the detection of the indenter 4 to facilitate the testing of the hardness of the car counterweight fixed on the limit plate 7.

[0024] Preferably, four sets of adjustment grooves 8 are arranged in a ring on the top of the limiting plate 7, and the bottom of the limiting plate 9 is provided with a circular protrusion that matches the adjustment grooves 8. The inner wall of the connecting block 10 is provided with a circular rotating groove, and the shape and size of the rotating groove match the protrusion on one side of the threaded rod 11.

[0025] In practical use, the position of the threaded rod 11 threaded to the side wall of the limiting plate 7 is adjusted according to the shape of the car counterweight. This pushes the connecting block 10 and the limiting plate 9, which are rotatably connected at the other end, to move. When the limiting plate 9 moves, the protrusion at its bottom moves in the adjustment groove 8 opened at the top of the limiting plate 7, thereby limiting its range of motion so that it can move parallel to the car counterweight placed at the top center of the limiting plate 7. Then, the position of the car counterweight is fixed by the four sets of limiting plates 9 and threaded rods 11.

[0026] Preferably, the surface of the stage 6 is provided with a threaded structure, and the shape and size of the threaded structure are adapted to the threaded groove on the inner wall of the bottom of the limiting disk 7.

[0027] In practical use, the threaded groove at the bottom of the limiting plate 7 is used to press the insert rod 13, which is elastically inserted at the top of the platform 6, inward. This causes the insert rod 13 to abut against the inner wall at the bottom of the limiting plate 7, while the limiting plate 7 is threadedly connected to the surface of the platform 6.

[0028] Preferably, the longitudinal end surface of the limiting plate 7 is movably connected to the insertion rod 13, the other end surface of the insertion rod 13 is provided with a connecting frame 14, the surface of the connecting frame 14 is threadedly connected to the connecting plate 15, the surface of the connecting plate 15 away from the connecting frame 14 is connected to the spring 16, the other side of the spring 16 is connected to the longitudinal end of the insertion plate 17, and the other longitudinal end surface of the insertion plate 17 is inserted and fitted into the surface of the slot 18 opened on the top of the platform 6.

[0029] In practical use, the threaded groove at the bottom of the limiting plate 7 is used to press the elastically inserted rod 13 at the top of the platform 6 inward. This causes the rod 13 to abut against the inner wall at the bottom of the limiting plate 7, while the limiting plate 7 is threadedly connected to the surface of the platform 6. At the same time, when the limiting plate 7 and the platform 6 rotate to a fixed position, the rod 13, which is abutted against by the inner wall of the limiting plate 7 and retracted into the platform 6, is rebounded by the connected spring 16 and inserted into the circular through groove on the surface of the limiting plate 7, thereby fixing the connection between the platform 6 and the limiting plate 7.

[0030] Preferably, a circular through groove is formed on the surface of the limiting plate 7, and the shape and size of the through groove are adapted to the insertion rod 13.

[0031] In practical use, the circular through groove on the surface of the limiting plate 7 allows the flexible insert rod 13 to be inserted into it, thereby fixing the connection position between the platform 6 and the limiting plate 7.

[0032] Preferably, the insert rod 13, the connecting frame 14, the connecting plate 15, the spring 16, and the insert plate 17 form an elastic connection structure.

[0033] In practical use, the position of the insertion rod 13 on the surface of the platform 6 can be elastically adjusted by using the spring 16 connected between the connecting frame 14 and the insertion plate 17. After long-term use, the aging spring 16 can be replaced by unscrewing the bolts fixed between the connecting frame 14 and the connecting plate 15 and pulling out the insertion plate 17 inserted into the slot 18.

[0034] Working principle: During the production of automotive counterweights, a suitable limiting plate 7 is selected based on the automotive counterweight to be tested. Using the threaded groove at the bottom of the limiting plate 7, the insert rod 13, elastically connected to the upper end of the platform 6, is pressed inward. This causes the insert rod 13 to abut against the inner wall of the bottom of the limiting plate 7, while the limiting plate 7 is threadedly connected to the surface of the platform 6. Simultaneously, when the limiting plate 7 and the platform 6 rotate to a fixed position, the insert rod 13, retracted within the platform 6 and abutted against by the inner wall of the limiting plate 7, is springed back by the connected spring 16 and inserted into the circular through-slot on the surface of the limiting plate 7, thus fixing the connection between the platform 6 and the limiting plate 7. Afterward, the automotive counterweight to be tested can be placed in the center of the groove at the top of the limiting plate 7. The threaded rod threaded to the side wall of the limiting plate 7 is adjusted according to the shape of the placed automotive counterweight. Position 11, thereby pushing the connecting block 10 and the limiting plate 9 connected to the other end to move. When the limiting plate 9 moves, the protrusion at its bottom moves in the adjustment groove 8 opened on the top of the limiting plate 7, thereby limiting its range of motion so that it can move parallel to the car counterweight block placed at the top center of the limiting plate 7. Then, the position of the car counterweight block is fixed by the four sets of limiting plates 9 and threaded rods 11. Then, the load value of the Rockwell hardness tester body 1 is adjusted by the pressure handle provided at the bottom of the lifting screw 5. Then, the pressure and speed of the indenter 4 are controlled by the control component 2, so that the indenter 4 is used to perform vertical pressure test on the car counterweight block clamped and fixed on the top of the limiting plate 7. Finally, the test data is displayed on the display screen 3 so that the user can record the hardness test results of the car counterweight block.

[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A testing device for automobile counterweight production, comprising a Rockwell hardness tester body (1), characterized in that: The Rockwell hardness tester body (1) has a control component (2) on the lower end of its side wall. The Rockwell hardness tester body (1) has a display screen (3) on the top front end. The Rockwell hardness tester body (1) has an indenter (4) at the upper end of its groove. The Rockwell hardness tester body (1) has a lifting screw (5) located directly below the indenter (4) on its surface. The lifting screw (5) has a platform (6) on its top surface. The platform (6) is threadedly connected to a limiting plate (7). The limiting plate (7) has an adjustment groove (8) on its top surface. The adjustment groove (8) is slidably connected to the bottom protrusion of the limiting plate (9). The limiting plate (9) has a connecting block (10) near the side wall of the limiting plate (7). The inner wall of the connecting block (10) is rotatably sleeved with one end of a threaded rod (11). The surface of the threaded rod (11) is threadedly connected to the surface of the threaded groove (12) on the side wall of the limiting plate (7).

2. The testing device for automobile counterweight production according to claim 1, characterized in that: The four sets of adjustment grooves (8) are arranged in a ring on the top of the limiting plate (7), and the bottom of the limiting plate (9) is provided with a circular protrusion that matches the adjustment groove (8). The inner wall of the connecting block (10) is provided with a circular rotating groove, and the shape and size of the rotating groove match the protrusion on one side of the threaded rod (11).

3. The testing device for automobile counterweight production according to claim 1, characterized in that: The surface of the stage (6) is provided with a threaded structure, and the shape and size of the threaded structure are adapted to the threaded groove on the inner wall of the bottom of the limiting disk (7).

4. The testing device for automobile counterweight production according to claim 1, characterized in that: The longitudinal end surface of the limiting plate (7) is movably connected to the plug rod (13), and the other end surface of the plug rod (13) is provided with a connecting frame (14). The surface of the connecting frame (14) is threadedly connected to the connecting plate (15). The surface of the connecting plate (15) away from the connecting frame (14) is connected to a spring (16). The other side of the spring (16) is connected to the longitudinal end of the plug plate (17). The other longitudinal end surface of the plug plate (17) is inserted and fitted into the slot (18) surface opened on the top of the platform (6).

5. The testing device for automobile counterweight production according to claim 1, characterized in that: The limiting plate (7) has a circular through groove on its surface, and the shape and size of the through groove are adapted to the insertion rod (13).

6. The testing device for automobile counterweight production according to claim 4, characterized in that: The insert (13), connecting frame (14), connecting plate (15), spring (16) and insert plate (17) form an elastic connection structure.

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